228263353394 has 8 divisors (see below), whose sum is σ = 362535914268. Its totient is φ = 107418048640.

The previous prime is 228263353391. The next prime is 228263353399. The reversal of 228263353394 is 493353362822.

It can be written as a sum of positive squares in 2 ways, for example, as 217953591025 + 10309762369 = 466855^2 + 101537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (228263353391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3356813987 + ... + 3356814054.

Almost surely, 2^228263353394 is an apocalyptic number.

228263353394 is a deficient number, since it is larger than the sum of its proper divisors (134272560874).

228263353394 is a wasteful number, since it uses less digits than its factorization.

228263353394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6713628060.

The product of its digits is 5598720, while the sum is 50.

The spelling of 228263353394 in words is "two hundred twenty-eight billion, two hundred sixty-three million, three hundred fifty-three thousand, three hundred ninety-four".